A dual parity hardware architecture that enables data to be read from each sector only once and performs both the P parity and Q parity from the single data source. The Q parity calculator provides parallel processing capabilities so that multiple parity operations are performed on the same sector simultaneously....http://www.google.fr/patents/US7698625?utm_source=gb-gplus-shareBrevet US7698625 - System for improving parity generation and rebuild performance
System for improving parity generation and rebuild performance
